620017384 has 48 divisors (see below), whose sum is σ = 1355684580. Its totient is φ = 265063680.

The previous prime is 620017379. The next prime is 620017403. The reversal of 620017384 is 483710026.

It can be written as a sum of positive squares in 2 ways, for example, as 618914884 + 1102500 = 24878^2 + 1050^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177414 + ... + 180874.

Almost surely, 2^620017384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620017384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (677842290).

620017384 is an abundant number, since it is smaller than the sum of its proper divisors (735667196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620017384 is a wasteful number, since it uses less digits than its factorization.

620017384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938 (or 3927 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 620017384 is about 24900.1482726509. The cubic root of 620017384 is about 852.7098678073.

The spelling of 620017384 in words is "six hundred twenty million, seventeen thousand, three hundred eighty-four".